Java tutorial
import java.awt.Color; import java.io.FileOutputStream; import java.io.IOException; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.pdf.CMYKColor; import com.lowagie.text.pdf.GrayColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfWriter; public class MainClass { public static void main(String[] args) throws Exception { Document document = new Document(); PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf")); document.open(); PdfContentByte cb = writer.getDirectContent(); cb.setColorFill(new GrayColor(0)); cb.rectangle(36, 770, 36, 36); cb.fillStroke(); cb.setGrayFill(1); cb.rectangle(470, 716, 36, 36); cb.fillStroke(); cb.setColorFill(new Color(1f, 1f, 1f)); cb.rectangle(416, 662, 36, 36); cb.fillStroke(); cb.setRGBColorFillF(1f, 1f, 1f); cb.rectangle(416, 608, 36, 36); cb.fillStroke(); cb.setColorFill(new CMYKColor(0f, 0f, 0f, 1f)); cb.rectangle(416, 554, 36, 36); cb.fillStroke(); cb.setCMYKColorFillF(0f, 0f, 0f, 1f); cb.rectangle(416, 500, 36, 36); cb.fillStroke(); document.close(); } }